Home / 3,458.57-5,198.78-2,977.43

Finding the Fourth Proportional to 3,458.57, 5,198.78 and 2,977.43

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Solution

The fourth proportional to 3,458.57, 5,198.78 and 2,977.43 is: 4,475.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.57 : 5,198.78 = 2,977.43 : x
  2. Step 2: Convert to fraction form
    3,458.57/5,198.78 = 2,977.43/x
  3. Step 3: Cross multiply
    3,458.57x = 5,198.78 × 2,977.43
  4. Step 4: Simplify right side
    3,458.57x = 15,478,984.99
  5. Step 5: Solve for x
    x = 15,478,984.99/3,458.57
  6. Step 6: Final answer
    x = 4,475.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.